X=time of the third person it would take to fill the pool
We can suggest this equation:
6[(1/20) + (1/15) +(1/x)]=1
6[(3x+4x+60)/60x]=1
(7x+60)/10x=1
7x+60=10x
7x-10x=-60
-3x=-60
x=-60/-3
x=20
Answer: the third person alone would fill the pool in 20 hours .
Old - new is 1 so than after that it would be 1/5 than 1/5 x 100 = 20%
Answer:
MNK = TRP
MN is congruent to TR.
X = 6.3
Step-by-step explanation:
MNK is congruent to TRP because the two triangles are congruent, which is a given statement. This also means that all side and angle measures will be congruent. Because of this, it can be inferred that MN is congruent to TR and they have equal side length measures. This means that TR measures 20. This means that 3X - 1 = 20. By solving we can get 6.33.
Answer:
This question requires us to change the subject of a formula. This can be achieved by following the order of operations in reverse. First, isolate the terms with our variable of interest, x:
ax - bx = z - y
Then, we take x out as it is being multiplied to both a and b:
x(a - b) = z - y
Dividing (a - b) on both sides, we get:
x = (z - y) / (a - b)
Thus, the answer is x= z-y/a-b
Step-by-step explanation:
The scale in cm to cm is:
1 cm = 20 cm
Step-by-step explanation:
Scales are used to draw maps and blueprints of large objects on paper.
Given scale is:
5 centimeters = 1 meter
WE have to find the centimeter to centimeter scale. In order to do so, we have to convert the meters into centimeters
As there are 100 centimeters in a meter
So,
the scale will be:
5 cm = 100 cm
Simplifying:
The scale in cm to cm is:
1 cm = 20 cm
Keywords: Scale, factors
Learn more about scales at:
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